The Patravi ScubaTec Manta Trust is the latest version of Carl F. Bucherer's popular ScubaTec, which irrespective of variation all have in common a 500m water resistance rating and a helium release valve, as well as all the other features required in a professional diving watch (including of course a one-way rotating bezel with ceramic insert, something that's become more or less de rigueur in modern, professional-level diver's watches). The Manta Trust is being produced as a limited edition of 188 pieces, and it's being made in partnership with, and to benefit, the Manta Trust, which is a non-profit conservation organization based in the Maldives and the UK, and whose mission is to study and protect these giant fish.